Hymenobacter persicinus sp. nov., a novel member of the family Hymenobacteraceae
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A bacterial strain, 1-3-3-3T, was isolated from a soil sample collected in Jeollabuk-do province, South Korea. Cells were observed to be Gram-stain negative, short rod-shaped and colonies to be red-pink in colour. Analysis of 16S rRNA gene sequences identified this strain as a member of the genus Hymenobacter in the family Hymenobacteraceae, with high levels of 16S rRNA sequence similarity with Hymenobacter algoricola VUG-A23aT (98.0%), Hymenobacter knuensis 16F7C-2 (97.9%), Hymenobacter fastidiosus VUG-A124T (97.1%), Hymenobacter elongatus VUG-A112T (97.0%), Hymenobacter chitinivorans Txc1T (97.0%) and Hymenobacter aquaticus 16F3PT (96.7%). Growth of strain 1-3-3-3T was observed at 10–30 °C, pH 6–8 and in the presence of 0–1.0% NaCl. The genomic G + C content was determined to be 61.6 mol %. The predominant respiratory quinone of the isolate was found to be MK-7; the major fatty acids were identified as iso-C15:0 (19.9%), summed feature 3 (C16:1ω7c/C16:1ω6c, 19.7%), summed feature 4 (iso-C17:1 I/anteiso-C17:1 B, 17.8%), C16:1ω5c (12.5%) and anteiso-C15:0 (11.2%), and the major polar lipid was found to be phosphatidylethanolamine. The phenotypic and chemotaxonomic data support the affiliation of strain 1-3-3-3T with the genus Hymenobacter. However, the DNA-DNA relatedness between the isolate and its closest phylogenetic neighbours was lower than 34%. The DNA–DNA hybridization result and the differentiating phenotypic properties clearly indicate that strain 1-3-3-3T represents a novel species in the genus Hymenobacter, for which the name Hymenobacter persicinus sp. nov. is proposed. The type strain is 1-3-3-3T (= KCTC 52742T = JCM 32191T).
KeywordsHymenobacter Hymenobacteraceae Polyphasic taxonomy Soil bacteria
This work was supported by Brain Pool Program (Grant No. 2018H1D3A2065415) through the National Research Foundation (NRF) funded by the Ministry of Science and ICT, Republic of Korea.
Leonid N. Ten analysed the data and wrote the manuscript, Na Yeong Jeon made the original isolation and performed the phenotypic characterization, Weilan Li performed TEM imaging and conducted the fatty acid analysis, Myung Kyum Kim performed 16S rRNA phylogeny, Young-Je Cho performed the phylogenetic analysis and taxonomic analysis, Hee-Young Jung designed, planned the study and wrote the manuscript. All authors approved the final version of the manuscript.
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Conflict of interest
The authors declare that they have no conflict of interest.
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This article does not contain any studies with human participants or animals performed by any of the authors.
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